1*9880d681SAndroid Build Coastguard Worker;RUN: opt -instcombine -S < %s | llc -mtriple=armv5e--linux-gnueabi | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker;RUN: opt -instcombine -S < %s | llc -mtriple=thumbv4t--linux-gnueabi | FileCheck %s 3*9880d681SAndroid Build Coastguard Worker;RUN: opt -instcombine -S < %s | llc -mtriple=armv6--linux-gnueabi | FileCheck %s 4*9880d681SAndroid Build Coastguard Worker 5*9880d681SAndroid Build Coastguard Worker;RUN: opt -instcombine -S < %s | llc -mtriple=armv7--linux-gnueabi | FileCheck %s --check-prefix=RBIT 6*9880d681SAndroid Build Coastguard Worker;RUN: opt -instcombine -S < %s | llc -mtriple=thumbv8--linux-gnueabi | FileCheck %s --check-prefix=RBIT 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Worker;CHECK-NOT: rbit 9*9880d681SAndroid Build Coastguard Worker;RBIT: rbit 10*9880d681SAndroid Build Coastguard Worker 11*9880d681SAndroid Build Coastguard Workerdefine void @byte_reversal(i8* %p, i32 %n) { 12*9880d681SAndroid Build Coastguard Workerentry: 13*9880d681SAndroid Build Coastguard Worker br label %for.cond 14*9880d681SAndroid Build Coastguard Worker 15*9880d681SAndroid Build Coastguard Workerfor.cond: ; preds = %for.body, %entry 16*9880d681SAndroid Build Coastguard Worker %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.body ] 17*9880d681SAndroid Build Coastguard Worker %cmp = icmp ult i32 %i.0, %n 18*9880d681SAndroid Build Coastguard Worker br i1 %cmp, label %for.body, label %for.end 19*9880d681SAndroid Build Coastguard Worker 20*9880d681SAndroid Build Coastguard Workerfor.body: ; preds = %for.cond 21*9880d681SAndroid Build Coastguard Worker %0 = sext i32 %i.0 to i64 22*9880d681SAndroid Build Coastguard Worker %arrayidx = getelementptr inbounds i8, i8* %p, i64 %0 23*9880d681SAndroid Build Coastguard Worker %1 = load i8, i8* %arrayidx, align 1 24*9880d681SAndroid Build Coastguard Worker %or19 = call i8 @llvm.bitreverse.i8(i8 %1) 25*9880d681SAndroid Build Coastguard Worker store i8 %or19, i8* %arrayidx, align 1 26*9880d681SAndroid Build Coastguard Worker %inc = add i32 %i.0, 1 27*9880d681SAndroid Build Coastguard Worker br label %for.cond 28*9880d681SAndroid Build Coastguard Worker 29*9880d681SAndroid Build Coastguard Workerfor.end: ; preds = %for.cond 30*9880d681SAndroid Build Coastguard Worker ret void 31*9880d681SAndroid Build Coastguard Worker} 32*9880d681SAndroid Build Coastguard Worker 33*9880d681SAndroid Build Coastguard Worker; Function Attrs: nounwind readnone 34*9880d681SAndroid Build Coastguard Workerdeclare i8 @llvm.bitreverse.i8(i8) 35